套井回填技术在云南小型水库除险加固中的应用

Application of Well Sleeve Backfilling Technology in Risk Removal and Reinforcement of Small Reservoirs in Yunnan Province

坝体渗漏是中小型水库常见的病害,会导致水库不能正常发挥作用。针对云南某小型水库运行多年产生的坝体渗漏问题,采用套井回填黏土技术进行防渗处理,并采用数值模拟方法分析了处理前后坝体渗漏量、坝体稳定安全性。结果表明,采用套井回填防渗后坝体渗漏量大大减少,安全系数得到提高,可有效保证水库安全稳定运行。

Dam body leakage is a common disease in medium and small reservoirs, which will lead to the reservoir not functioning properly. In view of dam body leakage caused by a small reservoir in Yunnan Province for many years, a set of well backfilling clay technology is used for seepage prevention treatment, and numerical simulation method is used to analyze dam body leakage volume and dam body stability safety before and after treatment. The result shows that the seepage of dam body is greatly reduced and the safety factor is improved after backfilling with sleeve well, which can effectively guarantee the safe and stable operation of reservoir.